diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,18 +7,20 @@
 find_package(ECM ${KF5_MIN_VERSION} REQUIRED CONFIG)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR})
 
-find_package(Qt5 ${QT_MIN_VERSION} REQUIRED NO_MODULE COMPONENTS Widgets Qml Quick QuickWidgets Svg Test OpenGL)
+find_package(Qt5 ${QT_MIN_VERSION} REQUIRED NO_MODULE COMPONENTS Widgets Qml Quick QuickWidgets PrintSupport Svg Test OpenGL)
 find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS
+    Archive
     Config
     ConfigWidgets
     CoreAddons
     Crash
     DBusAddons
+    DocTools
     GuiAddons
     I18n
     ItemModels
-    KDELibs4Support
     KIO
+    JobWidgets
     NewStuff
     NotifyConfig
     TextWidgets
diff --git a/src/gui/CMakeLists.txt b/src/gui/CMakeLists.txt
--- a/src/gui/CMakeLists.txt
+++ b/src/gui/CMakeLists.txt
@@ -36,11 +36,14 @@
 target_link_libraries(ksudoku_gui 
 	ksudoku_logic
     KF5KDEGames
-        KF5::Archive	 
-	KF5::KDELibs4Support 
+	KF5::Archive
+	KF5::GuiAddons
 	KF5::KIOCore
+	KF5::KIOWidgets
+	KF5::XmlGui
 	Qt5::Core 
 	Qt5::Gui
+	Qt5::PrintSupport
         Qt5::Svg
 	)
 
diff --git a/src/gui/ksudoku.cpp b/src/gui/ksudoku.cpp
--- a/src/gui/ksudoku.cpp
+++ b/src/gui/ksudoku.cpp
@@ -25,35 +25,39 @@
 #include "globals.h"
 #include "ksudoku.h"
 
+#include <QAction>
+#include <QComboBox>
+#include <QDir>
 #include <QDebug>
 #include <QDragEnterEvent>
 #include <QDropEvent>
-
-#include <QHBoxLayout>
-#include <QLabel>
-#include <QComboBox>
-
+#include <QFileDialog>
+#include <QFileInfo>
 #include <QMimeData>
-
+#include <QLabel>
+#include <QHBoxLayout>
+#include <QKeySequence>
 #include <QPrinter>
 #include <QPrintDialog>
 #include <QStandardPaths>
+#include <QStatusBar>
+#include <QTemporaryFile>
+#include <QUrl>
 
-#include <KLocalizedString>
 #include <KActionCollection>
-#include <KStandardAction>
-#include <QAction>
 #include <KConfigDialog>
+#include <KIO/Job>
+#include <KJobWidgets>
+#include <KLocalizedString>
+#include <KMessageBox>
+#include <KRun>
+#include <KSharedConfig>
+#include <KStandardAction>
+#include <KStandardGameAction>
+#include <KTar>
 
 #define USE_UNSTABLE_LIBKDEGAMESPRIVATE_API
 #include <libkdegamesprivate/kgamethemeselector.h>
-#include <QKeySequence>
-#include <QUrl>
-#include <kmessagebox.h>
-#include <KLocalizedString>
-#include <qstatusbar.h>
-#include <kio/netaccess.h>
-#include <krun.h>
 
 #include "ksview.h"
 #include "gameactions.h"
@@ -65,14 +69,6 @@
 
 #include "puzzleprinter.h"
 
-#include <ktar.h>
-#include <kio/job.h>
-#include <kstandardgameaction.h>
-#include <QDir>
-#include <KSharedConfig>
-#include <QFileDialog>
-#include <QFileInfo>
-
 #include "gamevariants.h"
 #include "welcomescreen.h"
 #include "valuelistwidget.h"
@@ -871,17 +867,25 @@
 		return; // user cancelled
 	}
 
-	QString tmpFile;
-	if(!KIO::NetAccess::download( Url, tmpFile, this ))
+	QTemporaryFile tmpFile;
+	if ( !tmpFile.open() )
+	{
+		return;
+	}
+	KIO::FileCopyJob *downloadJob = KIO::file_copy(Url, QUrl::fromLocalFile(tmpFile.fileName()), -1, KIO::Overwrite);
+	KJobWidgets::setWindow(downloadJob , this);
+	downloadJob->exec();
+
+	if( downloadJob->error() )
 	{
-		//TODO ERROR
+		KMessageBox::error(this, i18n("Unable to download file."), i18n("Error Reading File"));
 		return;
 	}
 
 	const QString destDir = QStandardPaths::writableLocation( QStandardPaths::GenericDataLocation ) + QStringLiteral("/ksudoku/");
 	QDir().mkpath( destDir );
 
-	KTar archive( tmpFile );
+	KTar archive( tmpFile.fileName() );
 
 	if ( archive.open( QIODevice::ReadOnly ) )
 	{
@@ -895,7 +899,6 @@
 		KIO::file_copy (Url, QUrl::fromLocalFile(destDir + '/' + Url.fileName()));
 	}
 
-	KIO::NetAccess::removeTempFile(tmpFile);
 	updateShapesList();
 }
 
diff --git a/src/gui/serializer.cpp b/src/gui/serializer.cpp
--- a/src/gui/serializer.cpp
+++ b/src/gui/serializer.cpp
@@ -24,16 +24,17 @@
 #include "ksudokugame.h"
 #include "puzzle.h"
 
-#include <qdom.h>
-//Added by qt3to4:
+#include <QDomDocument>
+#include <QFile>
 #include <QList>
 #include <QTextStream>
 #include <QUrl>
 #include <QTemporaryFile>
-#include <kio/netaccess.h>
-#include <qfile.h>
-#include <KLocalizedString>
 
+#include <KIO/FileCopyJob>
+#include <KJobWidgets>
+#include <KLocalizedString>
+#include <KMessageBox>
 
 #include "ksudoku.h"
 #include "symbols.h"
@@ -399,28 +400,36 @@
 }
 
 SKGraph *Serializer::loadCustomShape(const QUrl &url, QWidget* window, QString *errorMsg) {
-	if ( url.isEmpty() ) return 0;
-	QString tmpFile;
+	if ( url.isEmpty() ) return nullptr;
 	bool success = false;
 	QDomDocument doc;
-	if(KIO::NetAccess::download(url, tmpFile, window) ) {
-		QFile file(tmpFile);
-		if(file.open(QIODevice::ReadOnly)) {
-			int errorLine;
-			if(!doc.setContent(&file, 0, &errorLine)) {
-				if(errorMsg)
-					*errorMsg = i18n("Cannot read XML file on line %1", errorLine);
-
-				return 0;
-			}
-			success = true;
+
+	QTemporaryFile tmpFile;
+	if ( !tmpFile.open() ) {
+		return nullptr;
+	}
+	KIO::FileCopyJob *downloadJob = KIO::file_copy(url, QUrl::fromLocalFile(tmpFile.fileName()), -1, KIO::Overwrite);
+	KJobWidgets::setWindow(downloadJob, window);
+	downloadJob->exec();
+
+	if( downloadJob->error() ) {
+		KMessageBox::error(window, i18n("Unable to download file."), i18n("Error Reading File"));
+		return nullptr;
+	}
+	if(tmpFile.open()) {
+		int errorLine;
+		if(!doc.setContent(&tmpFile, 0, &errorLine)) {
+			if(errorMsg)
+				*errorMsg = i18n("Cannot read XML file on line %1", errorLine);
+
+			return nullptr;
 		}
-		KIO::NetAccess::removeTempFile(tmpFile);
+		success = true;
 	}
 	if ( !success ) {
 		if(errorMsg)
 			*errorMsg = i18n("Cannot load file.");
-		return 0;
+		return nullptr;
 	}
 
 	QDomNode child = doc.documentElement().firstChild();
@@ -433,26 +442,34 @@
 		child = child.nextSibling();
 	}
 
-	return 0;
+	return nullptr;
 }
 
 Game Serializer::load(const QUrl& url, QWidget* window, QString *errorMsg) {
 	if ( url.isEmpty() ) return Game();
-	QString tmpFile;
 	bool success = false;
 	QDomDocument doc;
-	if(KIO::NetAccess::download(url, tmpFile, window) ) {
-		QFile file(tmpFile);
-		if(file.open(QIODevice::ReadOnly)) {
-			int errorLine;
-			if(!doc.setContent(&file, 0, &errorLine)) {
-				if(errorMsg)
-					*errorMsg = i18n("Cannot read XML file on line %1", errorLine);
-				return Game();
-			}
-			success = true;
+
+	QTemporaryFile tmpFile;
+	if ( !tmpFile.open() ) {
+		return Game();
+	}
+	KIO::FileCopyJob *downloadJob = KIO::file_copy(url, QUrl::fromLocalFile(tmpFile.fileName()), -1, KIO::Overwrite);
+	KJobWidgets::setWindow(downloadJob, window);
+	downloadJob->exec();
+
+	if( downloadJob->error() ) {
+		KMessageBox::error(window, i18n("Unable to download file."), i18n("Error Reading File"));
+		return Game();
+	}
+	if(tmpFile.open()) {
+		int errorLine;
+		if(!doc.setContent(&tmpFile, 0, &errorLine)) {
+			if(errorMsg)
+				*errorMsg = i18n("Cannot read XML file on line %1", errorLine);
+			return Game();
 		}
-		KIO::NetAccess::removeTempFile(tmpFile);
+		success = true;
 	}
 	if ( !success ) {
 		if(errorMsg)
@@ -696,7 +713,13 @@
 	stream << doc.toString();
 	stream.flush();
 
-	KIO::NetAccess::upload(file.fileName(), url, window);
+	KIO::FileCopyJob *copyJob = KIO::file_copy(QUrl::fromLocalFile(file.fileName()), url);
+	KJobWidgets::setWindow(copyJob , window);
+	copyJob->exec();
+	if(copyJob->error())
+	{
+		KMessageBox::error(window, i18n("Unable to upload file."), i18n("Error Writing File"));
+	}
 	return true;
 }
 
diff --git a/src/gui/symbols.cpp b/src/gui/symbols.cpp
--- a/src/gui/symbols.cpp
+++ b/src/gui/symbols.cpp
@@ -35,7 +35,7 @@
 
 /// returns the number of the index
 int Symbols::ioSymbol2Value(const QChar& symbol) {
-	char c = symbol.toAscii();
+	char c = symbol.toLatin1();
 	if(symbol == '_') return VACANT;
 	if(symbol == '.') return UNUSABLE;
 	return c - 'a';
diff --git a/src/gui/views/view2d.cpp b/src/gui/views/view2d.cpp
--- a/src/gui/views/view2d.cpp
+++ b/src/gui/views/view2d.cpp
@@ -71,7 +71,7 @@
 };
 
 CellGraphicsItem::CellGraphicsItem(QPoint pos, int id, View2DScene* scene) {
-	setAcceptsHoverEvents(true);
+	setAcceptHoverEvents(true);
 	setShapeMode(QGraphicsPixmapItem::BoundingRectShape);
 	m_pos = pos;
 	m_size = 0;